The main issue of this project is to highlight the problems in bringing VRML behaviours to CAVE . As stated before VRML is converted to the native OPEN INVENTOR format by changing the header part of VRML file.

The following are the problems :
 

• OPEN INVENTOR does not support the VRML 2.0 nodes and hence there is no point in changing the header part of VRML 2.0 and loading it into pfnav.

• Pfnav which in turn depend on the CAVE libraries does not load the files other than the native OPEN INVENTOR format it reads.

• This approach is not a good one as there are many file conversions in the process from the VRML 2.0 unitl it reaches the cave. There are other approaches like writing a VRML loader for the CAVE  using the IRIS PERFORMER but the latest PERFORMER does not support all of the nodes and specifications of VRML 2.0  format . SGI has been in the job to expand IRIS PERFORMER  to support most of the new nodes in VRML 2.0 .